40729901845 has 8 divisors (see below), whose sum is σ = 48877092864. Its totient is φ = 32583114384.

The previous prime is 40729901837. The next prime is 40729901897. The reversal of 40729901845 is 54810992704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40729901845 - 2³ = 40729901837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206052 + ... + 352018.

It is an arithmetic number, because the mean of its divisors is an integer number (6109636608).

Almost surely, 2^40729901845 is an apocalyptic number.

It is an amenable number.

40729901845 is a deficient number, since it is larger than the sum of its proper divisors (8147191019).

40729901845 is a wasteful number, since it uses less digits than its factorization.

40729901845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201779.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 40729901845 in words is "forty billion, seven hundred twenty-nine million, nine hundred one thousand, eight hundred forty-five".